Quantum decoys create uncrackable code

时间：2019-03-02 08:07:05166网络整理admin

By Mark Buchanan THE long-running battle between coders and code-breakers could soon be over, as a breakthrough in quantum cryptography has brought uncrackable codes a step closer. To exchange a coded message, the sender and recipient must somehow share a secret sequence of 0s and 1s that is used as a key to encode and decode the message. The problem is finding a way to exchange the key without it being intercepted. To achieve this, cryptographers have developed the technique known as quantum key distribution,